Which of the following statements are true?

Cystic lung disease (i.e. lymphoid interstitial pneumonia (LIP) pattern) on HRCT is suspicious for Sjögren syndrome

The nonspecific interstitial pneumonia (NSIP) pattern is not associated with connective tissue disease.

Drug-induced interstitial lung disease may represent all different ILD patterns

The organizing pneumonia (OP) pattern is not associated with drug reaction.

Correct answers:
  • Cystic lung disease (i.e. LIP pattern) on HRCT is suspicious for Sjögren syndrome
  • Drug-induced interstitial lung disease may represent all different ILD patterns
Both, NSIP pattern and OP pattern, can be found in patients with connective tissue disease. OP is also associated with inhalational injury and drug reaction.


Hobbs S, Lynch, D. The idiopathic interstitial pneumonias: an update and review. Radiol Clin N Am. 2014;52:105–120.

Provided by Prof. Heussel and PD Kreuter (Thoraxklinik Heidelberg, Germany)
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